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Digital-green integration promotes synergistic pollution reduction and carbon mitigation:Mechanism analysis based on whole-process production control 认领 引用
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作者 Jie Xu Dongpeng Cheng Xianfeng Han 《Chinese Journal of Population,Resources and Environment》 CSCD 2026年第2期184-195,共12页
Synergistic pollution reduction and carbon mitigation(SPRCM)are inherent requirements for high-quality development.This study explores the internal mechanisms through which digital-green integration(DGI)policies facil... Synergistic pollution reduction and carbon mitigation(SPRCM)are inherent requirements for high-quality development.This study explores the internal mechanisms through which digital-green integration(DGI)policies facilitate SPRCM from the perspective of deep integration between“digitalization”and“greenization”.It aims to provide policy recommendations for coordinating the implementation of the“Digital China”and“Beautiful China”strategies.Using panel data from 280 prefecture-level cities(2010-2022)and treating the overlap between the Big Data Comprehensive Pilot Zone policy and the Low-Carbon City Pilot policy as a quasi-natural experiment for DGI,this study applies a double machine learning model to investigate its impact mechanisms and multidimensional policy effects.The findings indicate that,first,DGI enhances pollution emission efficiency and carbon emission efficiency,generating significant synergistic effects.Second,mechanism analysis based on whole-process production control reveals that during the source prevention stage,DGI drives SPRCM by optimizing the energy structure.At the process control stage,it enhances synchronized SPRCM through improved production efficiency.At the end-of-pipe treatment stage,advancements in green end-of-pipe technologies emerge as the dominant force propelling synergistic effects.Third,heterogeneity analysis reveals that the pollution reduction and carbon mitigation effects of DGI are more pronounced in resource-based cities,innovative cities,and cities within the Yangtze River Economic Belt than in non resource-based cities,non-innovative cities,and cities outside this strategic economic region.Consequently,a multipronged policy mix should be implemented to amplify the catalytic role of digital-green policy integration in driving pollution and carbon reduction.Whole-process production controls must be strengthened to streamline mitigation pathways,and region-specific strategies for DGI should be tailored based on local conditions with dynamic guidance. 展开更多
关键词 Digital-green integration Synergistic pollution reduction and carbon mitigation Whole-process production control Double machine learning
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Digital intelligence and synergy of pollution reduction and carbon reduction:“Dividend”or“gap”? 认领 引用 被引量：2
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作者 Jiajia Li Xianfeng Han +2 位作者 Tonglei Zhang Jian Xiao Longtao Chen 《Chinese Journal of Population,Resources and Environment》 2024年第4期389-398,共10页
At the intersection of the“dual carbon”goal and the era of digital intelligence(DI),exploring the synergy between pollution and carbon reduction(SPCR)within the context of DI is important for promoting a comprehensi... At the intersection of the“dual carbon”goal and the era of digital intelligence(DI),exploring the synergy between pollution and carbon reduction(SPCR)within the context of DI is important for promoting a comprehensive green transformation of economic and social development.This study,based on urban panel data from 281 prefecture-level cities in China' Mainland from 2010 to 2020,developed a DI indicator system for these cities and employed a double machine learning algorithm for the first time to investigate the intrinsic mechanisms and incentivizing effects of DI on SPCR.The results showed that:①DI significantly promotes SPCR.②Mechanism tests demonstrated that DI can indirectly enhance SPCR by optimizing resource allocation and reinforcing government interventions.③Further analysis showed that the impact of DI on SPCR was more substantial in regions with lower levels of economic and environmental competition.Moreover,the SPCR driven by DI exhibited heterogeneity,characterized by stronger effects in“resource-based cities>non resource-based cities”and“non-capital economic zones>capital economic zones”.The conclusions of this study hold significant implications for fully harnessing the synergy between digitization and intelligence to empower SPCR.In addition,the findings are valuable for the government’s integrated promotion of the“dual carbon”goal and the“digital China”strategy. 展开更多
关键词 Digital intelligence Synergy of pollution reduction and carbon reduction Double machine learning “Dual carbon”goal
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Metropolitan Pollution Reduction by Intelligent Negotiation 认领 引用 被引量：2
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作者 HANWei WANGYun WANGCheng-dao 《Wuhan University Journal of Natural Sciences》 EI CAS 2004年第5期629-632,共4页
This paper discusses the issue of pollution reduction in metropolises by means of intelligent negotiation in multi-agent systems. For situations of complete information, it gives a stochastic hill-climbing search algo... This paper discusses the issue of pollution reduction in metropolises by means of intelligent negotiation in multi-agent systems. For situations of complete information, it gives a stochastic hill-climbing search algorithm for computing the pollution-reduction solutions; For situations of incomplete information, it puts forward a genetic algorithm for computing the best solutions for every plants subjectively and proposes market-mechanism-based algorithm for computing the emission-redistribution solutions objectively. Key words intelligent negotiation - game theory - pollution reduction - genetic algorithm CLC number TP 391.1 Foundation item: Supported by the National 863 Project (2002AA134020-04)Biography: HAN Wei (1975-) male, Ph.D. candidate, research direction: MAS and Electronic Commercial. 展开更多
关键词 intelligent negotiation game theory pollution reduction genetic algorithm
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Pollution and carbon reduction effects of the pilot policy on clean winter heating in Northern China:Evidence from the county level 认领 引用 被引量：1
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作者 Yan Chen Jiaqi Li +1 位作者 Yue Zhang Fan Yang 《Chinese Journal of Population,Resources and Environment》 CSCD 2025年第1期85-95,共11页
Coal dependence and inefficient decentralized heating have significantly increased China’s energy consumption for winter heating,increasing air pollution and exacerbating the greenhouse effect.In 2017,China implement... Coal dependence and inefficient decentralized heating have significantly increased China’s energy consumption for winter heating,increasing air pollution and exacerbating the greenhouse effect.In 2017,China implemented the Pilot Policy on Clean Winter Heating in Northern China,aiming to achieve high central heating coverage and cleaner energy consumption.Studying the effects of this policy can help promote its implementation and serve as a reference for effective adjustment of the contents in the future.However,few studies have investigated this policy and its carbon reduction effects,and most focus on the provincial or city levels.Therefore,this paper considers the policy’s influence on air pollution and carbon emissions at the county level to provide a precise and comprehensive assessment of the policy effects.We use panel data from 1290 counties in 15 provinces in Northern China from 2014 to 2021,applying a multiperiod difference-in-differences model to quantify the impact of the policy on carbon emissions and air quality in the pilot area.We then conduct a series of tests to demonstrate the robustness of the results and analyze the mechanisms of the policy effects from two perspectives,namely,central heating and natural gas use,through a mediating effect model.Finally,we examine the heterogeneity of policy effects between counties based on geographic location and per capita income levels of rural residents through a moderating effect model.The results reveal that the policy significantly reduces air pollution and carbon emissions in the pilot area by increasing the central heating area and natural gas use.Compared with the central and western regions in the north and areas with low-income rural residents,the policy effects in the eastern regions in the north and areas with high-income rural residents are more pronounced. 展开更多
关键词 Pilot policy on clean winter heating Pollution and carbon reduction Multiperiod difference-in-differences model County-level analysis Northern China
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Quantification of emission reduction potentials of primary air pollutants from residential solid fuel combustion by adopting cleaner fuels in China 认领 引用 被引量：8
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作者 Guofeng Shen 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2015年第11期1-7,共7页
Residential low efficient fuel burning is a major source of many air pollutants produced during incomplete combustions, and household air pollution has been identified as one of the top environmental risk factors. Her... Residential low efficient fuel burning is a major source of many air pollutants produced during incomplete combustions, and household air pollution has been identified as one of the top environmental risk factors. Here we compiled literature-reported emission factors of pollutants including carbon monoxide（CO）, total suspended particles（TSPs）, PM2.5, organic carbon（OC）,elemental carbon（EC） and polycyclic aromatic hydrocarbons（PAHs） for different household energy sources, and quantified the potential for emission reduction by clean fuel adoption. The burning of crop straws, firewood and coal chunks in residential stoves had high emissions per unit fuel mass but lower thermal efficiencies, resulting in high levels of pollution emissions per unit of useful energy, whereas pelletized biofuels and coal briquettes had lower pollutant emissions and higher thermal efficiencies. Briquetting coal may lead to 82%–88% CO, 74%–99%TSP, 73%–76% PM2.5, 64%–98% OC, 92%–99% EC and 80%–83% PAH reductions compared to raw chunk coal. Biomass pelletizing technology would achieve 88%–97% CO, 73%–87% TSP, 79%–88%PM2.5, 94%–96% OC, 91%–99% EC and 63%–96% PAH reduction compared to biomass burning. The adoption of gas fuels（i.e., liquid petroleum gas, natural gas） would achieve significant pollutant reduction, nearly 96% for targeted pollutants. The reduction is related not only to fuel change, but also to the usage of high efficiency stoves. 展开更多
关键词 Household solid fuel use Air pollutants Clean fuel intervention Emission reduction
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Fiscal Expenditure Structure and Environmental Pollution:Empirical Research Based on the Panel Threshold Model 认领 引用
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作者 Deng Yanlong 《Meteorological and Environmental Research》 2018年第1期32-37,共6页
Based on China＇s provincial panel data from 2004 to 2014,the net effect and threshold characteristics of local governments＇ fiscal expenditure structure on environmental pollution were tested with the nonlinear pane... Based on China＇s provincial panel data from 2004 to 2014,the net effect and threshold characteristics of local governments＇ fiscal expenditure structure on environmental pollution were tested with the nonlinear panel threshold model. The results showed that the net effect of fiscal expenditure structure on regional pollution emission intensity had significant inverted V-shaped single threshold characteristics. Besides,the threshold value of economic density was 6. 039 6 million yuan/km^2,and that of population density was 201 people/km^2. That is,the fiscal expenditure structure inclining to productive expenditure was relatively conducive to the promotion of pollution reduction in the areas with low economic density or low population density. The fiscal expenditure structure inclining to non-productive expenditure was relatively conducive to the promotion of pollution reduction in the areas with high economic density or high population density. 展开更多
关键词 Fiscal expenditure structure Pollution reduction Threshold effect
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Dynamic evaluation of China’s atmospheric environmental pressure from 2008 to 2017:Trends and drivers 认领 引用
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作者 Aishi Huang Ming Chu +4 位作者 Wenxuan Cheng Gang Wang Panbo Guan Lei Zhang Jia Jia 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2025年第4期177-187,共11页
Evaluating the pressure of atmospheric pollutant emissions on the atmospheric environment is crucial for effective pollution control and emission reduction policies.This study introduces a novel Atmospheric Environmen... Evaluating the pressure of atmospheric pollutant emissions on the atmospheric environment is crucial for effective pollution control and emission reduction policies.This study introduces a novel Atmospheric Environmental Pressure Index(AEPI)and employs a dynamic comprehensive method to evaluate China’s Atmospheric Environmental Pressure(AEP)across 31 provinces from 2008 to 2017.The drivers of AEP were analyzed using a spatial panel data model,uncovering the integral role of pollution reduction policies,particularly the Air Pollution Prevention and Control Action Plan,which led to a 25%reduction in AEP during its enforcement.Our findings reveal significant spatial disparities in AEP,with higher levels in the Beijing-Tianjin-Hebei and Yangtze River Delta regions.The regression analysis identifies economic development,industrial structure,energy efficiency,environmental regulations,and urbanization as key influencing factors,though their impacts vary across different regions,suggesting the need for region-specific pollution control policies.Furthermore,the shift in the AEP gravity center from2008 to 2017 indicated a southeastward movement,suggesting the necessity to focus air pollution control efforts on the southeast provinces.In conclusion,the AEPI developed in this study enables comparative analysis of AEP across different regions and facilitates the monitoring of long-term trends,which is valuable in guiding regional air pollution control in China. 展开更多
关键词 Atmospheric environmental pressure Atmospheric environmental pressure index Spatial disparities Pollution reduction policies
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Targets and Misunderstandings in Pollutants Reduction of Power Plants—An Interview with Wang Zhixuan,Vice-Secretary of CEC 认领 引用
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作者 Sha Yiqiang Journalist of China Power Enterprise Management Wang Ningling 《Electricity》 2008年第2期14-18,共5页
● The demand for organics reduction in power industry needs to be analyzed. Generally speaking, the organicsfrom power plants is neither a main source of water pollution nor an emphasis of pollution control.● The no... ● The demand for organics reduction in power industry needs to be analyzed. Generally speaking, the organicsfrom power plants is neither a main source of water pollution nor an emphasis of pollution control.● The normal operation of FGD facilities is the key to fulfill the mission of SO2 emission reduction.● The control of SO2 emission should not be imposed uniformly on all power plants nationwide.● It is difficult to promote the emission trading of SO2 institutionally.● The active policy of levying for SO2 emission starting from zero emission and using levies for SO2 control isunreasonable. It should be reformed as levying only for over-limit emission, and not levying for emissionsbelow limit or levying indicatively.● Environmental regulations on SO2 control should make differences depending on environmental function ofzones, time period of generating units installed and manner of emissions. 展开更多
关键词 Targets and Misunderstandings in Pollutants Reduction of Power Plants Wang
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Risk-based water quality decision-making under small data using Bayesian network 认领 引用 被引量：4
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作者 张庆庆 许月萍 +1 位作者 田烨 张徐杰 《Journal of Central South University》 SCIE EI CAS 2012年第11期3215-3224,共10页
A knowledge-based network for Section Yidong Bridge,Dongyang River,one tributary of Qiantang River,Zhejiang Province,China,is established in order to model water quality in areas under small data.Then,based on normal ... A knowledge-based network for Section Yidong Bridge,Dongyang River,one tributary of Qiantang River,Zhejiang Province,China,is established in order to model water quality in areas under small data.Then,based on normal transformation of variables with routine monitoring data and normal assumption of variables without routine monitoring data,a conditional linear Gaussian Bayesian network is constructed.A "two-constraint selection" procedure is proposed to estimate potential parameter values under small data.Among all potential parameter values,the ones that are most probable are selected as the "representatives".Finally,the risks of pollutant concentration exceeding national water quality standards are calculated and pollution reduction decisions for decision-making reference are proposed.The final results show that conditional linear Gaussian Bayesian network and "two-constraint selection" procedure are very useful in evaluating risks when there is limited data and can help managers to make sound decisions under small data. 展开更多
关键词 water quality risk pollution reduction decisions Bayesian network conditional linear Gaussian Model small data
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Disposal of zinc extraction residues via iron ore sintering process:an innovative resource utilization 认领 引用 被引量：3
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作者 Chun-long Fan Cheng-yi Ding +4 位作者 Tao Yang Yun-fei Luo Yi-fan Wang Qian Li Hong-ming Long 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2024年第7期1636-1645,共10页
Zinc extraction residue,a solid waste generated from the treatment of zinc-containing dust in rotary kilns,is commonly stockpiled in steel companies for extended periods.It poses significant disposal challenges and en... Zinc extraction residue,a solid waste generated from the treatment of zinc-containing dust in rotary kilns,is commonly stockpiled in steel companies for extended periods.It poses significant disposal challenges and environmental pollution risks.So far,research on the treatment of zinc extraction residues has been slow,inadequate,and sporadic.For this gap,a novel approach was proposed to effectively treat the zinc extraction residue via the iron ore sintering process.It was feasible to add 1 wt.%of zinc extraction residues to the sintering raw materials.The more adequate mineralization reaction resulted in higher yield and tumbler indexes,despite a slight decrease in sintering speed.Although this may result in a slight decrease in sintering speed,the more complete mineralization reaction leads to improved sintering yield and tumbler index.Interestingly,the addition of zinc extraction residues reduced the CO and NOx concentrations in the sintering flue gas.Thus,the iron ore sintering process provided a viable solution for resource utilization and environmentally friendly treatment of zinc extraction residues. 展开更多
关键词 Zinc extraction residue Iron ore sintering Co-processing Waste utilization Gas pollutant reduction
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Simulations of Carbon Dioxide Emissions Related to the Use of Public Transport for Students in a Higher Education Institution in Southern Brazil 认领 引用
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作者 Carla Gabriela Carlot Zorzi Tauana Bertoldi +7 位作者 Alcindo Neckel Laércio Stolfo Maculan Laura PasaCambrussi Kleber Augusto Medeiros Georgea Marthina Pedott Julian Grub Henrique Aniceto Kujawa Leila Dal Moro 《Journal of Civil Engineering and Architecture》 2021年第1期28-34,共7页
Carbon dioxide(CO2)emissions from motor vehicles have been increasing in large urban centers,thus contributing to air pollution.The general objective of this study is to analyze simulations of CO2 emissions among stud... Carbon dioxide(CO2)emissions from motor vehicles have been increasing in large urban centers,thus contributing to air pollution.The general objective of this study is to analyze simulations of CO2 emissions among students who use public transport in the city of Passo Fundo,in the state of Rio Grande do Sul,Brazil.Methodologically,this study was developed in three stages:(1)verification of the time used by higher education students at Faculdade Meridional(IMED)in relation to urban mobility;(2)understanding of the transport mode used by these students,taking into account the one which appears with the highest incidence;(3)simulating CO2 emissions from the modes of transport used by students after the application of the Environmental Impact Simulator(EIS)used by the National Public Transport Association(ANTP,in Portuguese)for the modeling of transport indexes aimed at analyzing CO2 emissions.When considering the total of 3,079 students who assigned to a sample of 66 questionnaires,a reduction of CO2 emissions of 4,527.04 kg during a year in relation to the use of public transport was found. 展开更多
关键词 Public transport urban mobility environmental impacts environmental analysis pollution reduction
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Water pollution in hydropower projects:challenges,s olutions,and policy implications 认领 引用
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作者 Xinran Li 《Advances in Engineering Innovation》 2025年第9期48-57,共10页
This paper explores the environmental impacts of Water Conservancy and Hydropower Engineering/Projects(WCHE),with a focus on the water pollution caused by construction projects.Rapid urbanization has heightened concer... This paper explores the environmental impacts of Water Conservancy and Hydropower Engineering/Projects(WCHE),with a focus on the water pollution caused by construction projects.Rapid urbanization has heightened concerns over water pollution,which threa tens ecosystems and human health.This article identifies three primary pollution types-physical pollution,chemical pollution and biological pollution,such as sedimentation,eutrophication and disruption of the hydrological cycle.These impacts are part icularly evident in changes in water flow velocity and water quality,which may endanger aquatic organisms and damage the surrounding ecosystem.This article also discusses three main methods for alleviating water pollution-chemical(e.g.,flocculants,though risk of secondary pollution),physical(e.g.,sedimentation,aeration-costly but effective),and biological(e.g.,eco-floating islands,sustainable yet high initial investment).Finally,this study emphasizes the need t o formulate comprehensive policies and environmental regulations to balance the benefits of water conservancy projects and water resources protection.By integrating technical solutions with policy frameworks,it is possible to achieve sustainable developm ent while mitigating the environmental impacts of large-scale engineering projects.Under the influence of water environment,water quality management cannot rely solely on technical or engineering solutions.Instead,establishing strict environmental regu lations,enhancing law enforcement capabilities,and promoting interdisciplinary cooperation among engineers,environmental scientists,and policy makers are of vital importance. 展开更多
关键词 WCHE water pollution ecosystem pollution reduction
Performance Evaluation of Two Series Vertical Flow Filters for Wastewater Treatment: A Case Study of the Prototype Installed at Gaston Berger University, Saint-Louis, Senegal 认领 引用
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作者 Abdou Khafor Ndiaye Falilou Coundoul +2 位作者 Abdoulaye Deme Antonina Torrens Armengol Abdoulaye Senghor 《Open Journal of Modern Hydrology》 CAS 2024年第1期14-32,共19页
This paper evaluates the efficacy of two sequential vertical flow filters (VFF), FV1 and FV2, implanted with Typha, in a pilot-scale wastewater treatment system. FV1 comprises three cells (FV1a, FV1b, and FV1c), while... This paper evaluates the efficacy of two sequential vertical flow filters (VFF), FV1 and FV2, implanted with Typha, in a pilot-scale wastewater treatment system. FV1 comprises three cells (FV1a, FV1b, and FV1c), while FV2 consists of two cells (FV2a and FV2b), each designed to reduce various physicochemical and microbiological pollutants from wastewater. Quantitative analyses show significant reductions in electrical conductivity (from 1331 to 1061 μS/cm), biochemical oxygen demand (BOD5 from 655.6 to 2.3 mg/L), chemical oxygen demand (COD from 1240 to 82.2 mg/L), total nitrogen (from 188 to 37.3 mg/L), and phosphates (from 70.9 to 14.6 mg/L). Notably, FV2 outperforms FV1, particularly in decreasing dissolved salts and BOD5 to remarkably low levels. Microbiological assessments reveal a substantial reduction in fecal coliforms, from an initial concentration of 7.5 log CFU/100mL to 3.7 log CFU/100mL, and a complete elimination of helminth eggs, achieving a 100% reduction rate in FV2. The study highlights the impact of design parameters, such as filter material, media depth, and plant species selection, on treatment outcomes. The findings suggest that the judicious choice of these components is critical for optimizing pollutant removal. For instance, different filtration materials show varying efficacies, with silex plus river gravel in FV1c achieving superior pollutant reduction rates. In conclusion, VFFs emerge as a promising solution for wastewater treatment, underscoring the importance of design optimization to enhance system efficiency. Continuous monitoring and adaptation of treatment practices are imperative to ensure water quality, allowing for safe environmental discharge or water reuse. The research advocates for ongoing improvements in wastewater treatment technologies, considering the environmental challenges of the current era. The study concludes with a call for further research to maximize the effectiveness of VFFs in water management. 展开更多
关键词 Phytoremediation Phytopurification Plant-Based Purifier Wastewater Treat-ment Vertical Flow Filters Pollutant Reduction Typha Physicochemical Analysis Microbial Removal
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Study on Migration Law of Runoff Pollutants in Bio-retention Tank 认领 引用
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作者 Yang YOU 《Meteorological and Environmental Research》 2022年第3期91-96,共6页
The migration law of runoff pollutants in bio-retention tank was studied through the experimental research, containing calculation formula of pollutants reduction coefficient. After that, the technology of reducing an... The migration law of runoff pollutants in bio-retention tank was studied through the experimental research, containing calculation formula of pollutants reduction coefficient. After that, the technology of reducing and controlling runoff pollution by bio-retention tank was demonstrated. The result showed that bio-retention tank can reduce runoff by 15%-85%, and the pollutant emissions can be cut by 35%-95%. At the same time, it had good ecological landscape effect. The study can provide a reference for the design method of road bio-retention tank in sponge city construction, and basic technical methods and parameters for the subsequent construction of comprehensive control platform for urban rainwater runoff and the layout optimization of comprehensive measures of water quality and quantity. 展开更多
关键词 Bio-retention Runoff pollution Migration law Pollutant reduction Sponge city
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Pollutant reduction effectiveness of low-impact development drainage system in a campus 认领 引用 被引量：1
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作者 Shuhan Zhang Yingying Meng +1 位作者 Jiao Pan Jiangang Chen 《Frontiers of Environmental Science & Engineering》 SCIE EI CSCD 2017年第4期113-120,共8页
Building a rainwater system based on the idea of low-impact development （LID） is an important aspect of the current ＂sponge city＂ construction in China. The ＂sponge city＂ concept emphasizes that the runoff can p... Building a rainwater system based on the idea of low-impact development （LID） is an important aspect of the current ＂sponge city＂ construction in China. The ＂sponge city＂ concept emphasizes that the runoff can permeate the soil or be stored temporarily, and rainwater could be used again when it is needed. Beijing is one of the earliest cities to study rainwater harvesting and LID techniques in China.Through long-terua monitoring of rainfall, runoff flow, and water quality of a campus demonstration project in Beijing, the runoff quantity and pollutant concentration variations have been analyzed. Furthermore, the runoffreduction effects of single LID measure, such as green roof, filtration chamber, and permeable pavement, have been investigated. Additionally, the overall reduction effectiveness of the LID system on the average annual rainfall runoff and pollution load has been discussed. 展开更多
关键词 Low-impact development Rainwater harvesting Non-point-source pollution reduction Campus
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Emission Reduction Investment, Technology Choice and Business Environmental Performance: Evidence from China’s Foreign Investment Liberalization Reform 认领 引用
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作者 Chao Han Zhen Wang 《China Finance and Economic Review》 2022年第4期89-109,共21页
Pollution has become an unavoidable concern as China’s high-quality development is underway.How to reduce pollution is an imperative issue for China to address.Pollution emissions are closely related to factor inputs... Pollution has become an unavoidable concern as China’s high-quality development is underway.How to reduce pollution is an imperative issue for China to address.Pollution emissions are closely related to factor inputs,production processes and pollution control measures.Are there other forces to cut emissions besides regulatory control?Taking sulfur dioxide as an example,this paper probes into the potential mechanism through which technical efficiency drives pollution reduction in the context of opening to foreign investment.The results reveal that the openness to foreign investment remarkably lowers pollution emissions of fi rms,with SOEs,large fi rms and exporters seeing more pronounced pollution reduction eff ect after opening to foreign investment,while fi rms in pollution-intensive industries and less regulated areas are weaker in pollution reduction.A look into fi rm behavior suggests that the openness to foreign investment reduces pollutant emissions by improving technical efficiency rather than by raising investment in pollution control.The pollution reduction eff ect resulting from the openness is refl ected in the improvement of intra-fi rm emission reduction capacity instead of inter-fi rm resource reallocation eff ect,according to an analysis at the aggregate level.This paper concludes that technical efficiency gains are an important tool to advance pollution reduction,and that China must be more flexible in leveraging the pollution reduction effect of other policies regarding technical effi ciency to drive its high-quality development that is green. 展开更多
关键词 pollution reduction openness to foreign investment firm behavior technical effi ciency
Achieving air pollutant emission reduction targets with minimum abatement costs:An enterprise-level allocation method with constraints of fairness and feasibility 认领 引用 被引量：1
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作者 Yanfei Chen Ji Zheng +2 位作者 Miao Chang Qing Chen Cuicui Xiao 《Frontiers of Environmental Science & Engineering》 SCIE EI CSCD 2022年第2期137-150,共14页
For achieving air pollutant emission reduction targets,total pollutant amount control is being continuously promoted in China.However,the traditional pattern of pollutant emission reduction allocation regardless of ec... For achieving air pollutant emission reduction targets,total pollutant amount control is being continuously promoted in China.However,the traditional pattern of pollutant emission reduction allocation regardless of economic cost often results in unreasonable emission reduction pathways,and industrial enterprises as the main implementers have to pay excessively high costs.Therefore,this study adopted economic efficiency as its main consideration,used specific emission reduction measures(ERMs)of industrial enterprises as minimum allocation units,and constructed an enterprise-level pollutant emission reduction allocation(EPERA)model with minimization of the total abatement cost(TAC)as the objective function,and fairness and feasibility as constraints for emission reduction allocation.Taking City M in China as an example,the EPERA model was used to construct a Pareto optimal frontier and obtain the optimal trade-off result.Results showed that under basic and strict emission reduction regulations,the TAC of the optimal trade-off point was reduced by 46.40%and 45.77%,respectively,in comparison with that achieved when only considering fairness,and the Gini coefficient was 0.26 and 0.31,respectively.The abatement target was attained with controllable cost and relatively fair and reasonable allocation.In addition,enterprises allocated different emission reduction quotas under different ERMs had specific characteristics that required targeted optimization of technology and equipment to enable them to achieve optimal emission reduction effects for the same abatement cost. 展开更多
关键词 Pollutant emission reduction allocation Emission reduction measures Total abatement cost Economic efficiency Abatement space
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Relationship between Urban Industrial Land Use Size and Sulfur Dioxide Emissions:Evidence from 294 Cities in China 认领 引用 被引量：2
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作者 WANG Yang YANG Min +3 位作者 WU Yingmei SUN Guiquan YUE Xiaoli ZHANG Hong’ou 《Journal of Resources and Ecology》 CSCD 2024年第4期793-803,共11页
Although the relationship between the size of urban industrial land use and pollutant emissions has been widely discussed from different perspectives(e.g.,the scale and crowding effects),the results of various studies... Although the relationship between the size of urban industrial land use and pollutant emissions has been widely discussed from different perspectives(e.g.,the scale and crowding effects),the results of various studies have revealed positive,negative,and combined impact relationships.However,how the expansion of urban industrial land use affects SO2 emissions remains unknown.We need to clarify this relationship in order to facilitate the realization of China’s pollution reduction and emission reduction goals.This study used the panel data from 294 cities spanning from 2011 to 2019 to construct a spatial econometric model.The objective was to explore the correlation between the scale of urban industrial land and sulfur dioxide emissions in China.The results show that a large scale of urban industrial land use corresponds to lower sulfur dioxide emissions per unit of industrial added value.By gaining a deeper understanding of the relationship between the scale of urban industrial land use and sulfur dioxide emissions,policymakers can further reduce pollutant emissions by rationalizing the planning of urban industrial land use and industrial layout.In addition to promoting industrial agglomeration and economies of scale in cities with extensive industrial land use,this strategy can support the development of efficient and environmentally friendly industries in areas with limited industrial land use.Optimizing the technology and encouraging the development of green industries can help reduce environmental pollution and promote sustainable urban development. 展开更多
关键词 urban industrial land sulfur dioxide emissions pollution reduction and emission reduction spatial panel model
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Air pollutant emissions induced by rural-to-urban migration during China's urbanization(2005-2015) 认领 引用 被引量：4
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作者 Guang Shi Xi Lu +5 位作者 Hongxia Zhang Haotian Zheng Zhonghua Zhang Shi Chen Jia Xing Shuxiao Wang 《Environmental Science and Ecotechnology》 SCIE 2022年第2期45-53,共9页
As the world's most populous country,China has witnessed rapid urbanization in recent decades,with population migration from rural to urban(RU)regions as the major driving force.Due to the large gap between rural ... As the world's most populous country,China has witnessed rapid urbanization in recent decades,with population migration from rural to urban(RU)regions as the major driving force.Due to the large gap between rural and urban consumption and investment level,large-scale RU migration impacts air pollutant emissions and creates extra uncertainties for air quality improvement.Here,we integrated population migration assessment,an environmentally extended inputeoutput model and structural decomposition analysis to evaluate the NOx,SO2 and primary PM2.5 emissions induced by RU migration during China's urbanization from 2005 to 2015.The results show that RU migration increased air pollutant emissions,while the increases in NOx and SO2 emissions peaked in approximately 2010 at 2.4 Mt and 2.2 Mt,accounting for 9.2%and 8.7%of the national emissions,respectively.The primary PM2.5 emissions induced by RU migration also peaked in approximately 2012 at 0.3 Mt,accounting for 2.8%of the national emissions.The indirect emissions embodied in consumption and investment increased,while household direct emissions decreased.The widening gap between urban and rural investment and consumption exerted a major increasing effect on migration-induced emissions;in contrast,the falling emission intensity contributed the most to the decreasing effect benefitting from end-of-pipe control technology applications as well as improving energy efficiency.The peak of air pollutant emissions induced by RU migration indicates that although urbanization currently creates extra environmental pressure in China,it is possible to reconcile urbanization and air quality improvement in the future with updating urbanization and air pollution control policies. 展开更多
关键词 Urbanization Population migration Air pollutant emission reduction Inputeoutput model Structural decomposition analysis
The R&D of Flue Gas Pollutants Deep-Removal Technology for Coal-fired Power Plants 认领 引用 被引量：2
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作者 Xiao-lu Zhang 《Frontiers of Engineering Management》 2015年第4期359-363,394,共5页
The flue gas pollutants deep-removal technology(DRT) focusing on PM2.5removal is the prime method of further reducing pollutants emission from coal-fired power plants. In view of the four key technological challenges ... The flue gas pollutants deep-removal technology(DRT) focusing on PM2.5removal is the prime method of further reducing pollutants emission from coal-fired power plants. In view of the four key technological challenges in developing the DRT, studies were conducted on a series of purification technologies and the DRT was developed and successfully applied in 660 MW and 1000 MW coal-fired units. This paper analyzes the application results of the demonstration project, and proposes a roadmap for the follow-up researches and optimizations. 展开更多
关键词 coal-fired power plant pollutants emission reduction PM2 5 flue gas pollutants deep-removal
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